Self-lubricating bearing and coating

a self-lubricating, bearing technology, applied in the direction of sliding contact bearings, bearings, mechanical equipment, etc., can solve the problems of affecting the service life of the bearing, the use of woven fabrics may not be suitable or convenient in some bearing applications, and the bearings typically wear more quickly, so as to achieve easy bearing maintenance and good wear performance.
US6180574B1Inactive Publication Date: 2001-01-30REXNORD CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
REXNORD CORP
Publication Date
2001-01-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

A self-lubricating coating is provided which includes a mixture of a curable acrylate composition including a dipentaerythritol pentaacylate and a solid lubricant, such as polytetraflourethylenr. The curable acrylate composition may also include triethylene glycol dimethacrylate. An aramid pulp may also be added to the coating mixture. Also disclosed is a method of manufacturing the coating, and a self-lubricating bearing having the coating disposed on its surface.
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Description

This invention relates to self-lubricating coatings, and particularly to self-lubricating coatings useful for bearings.Bearings having a self-lubricating coating are known. For example, U.S. Pat. No. 4,134,842 to Orkin discloses a self-lubricating bearing assembly in which one bearing surface is a woven fabric impregnated with a cured acrylate composition. The use of a woven fabric may not be suitable or convenient in some bearing applications, for example, where only a small orifice may be available into which to inject a coating.In addition, customers demand bearing coatings with good wear properties. Under high temperature conditions, bearings typically wear more quickly. Therefore, a particularly desirable bearing coating would be easy to apply to a variety of surface and would have good wear properties even under high temperature use.SUMMARY OF INVENTIONThe present invention is directed to coatings with lubricating properties which may be applied by a variety of methods to surf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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